Sennheiser is one of the most respected names in the audio world and especially with headphone users. Almost five years ago, they released the GAME ONE headset and set a new high water mark for PC gaming audio. In late 2016, the company began reshaping its gaming line with a new “GSP” series, first with the entry-level GSP 300, which is still one of the best headsets you can buy for under $90. This year, they’re taking on the other end of the spectrum and releasing a new gaming flagship: the GSP 600. With an MSRP of $249, it doesn’t come cheap, but is easily one of the best headsets in its class.